A super-massive black hole, roughly 12 billion times as massive as our sun, has been discovered at the center of a bright quasar. The light reaching us now from that distant location has been traveling for billions of years, and thus offers a glimpse into the earliest stages of the universe. Image: NASA/JPL-Caltech

In a new study published in the journal Geophysical Research Letters, Columbia University marine geophysicist Maya Tolstoy reports fluctuations in eruption activity that correlate with changes in sea...